Home / 90,685.95-125,146.14-49,851.03

Finding the Fourth Proportional to 90,685.95, 125,146.14 and 49,851.03

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Solution

The fourth proportional to 90,685.95, 125,146.14 and 49,851.03 is: 68,794.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,685.95 : 125,146.14 = 49,851.03 : x
  2. Step 2: Convert to fraction form
    90,685.95/125,146.14 = 49,851.03/x
  3. Step 3: Cross multiply
    90,685.95x = 125,146.14 × 49,851.03
  4. Step 4: Simplify right side
    90,685.95x = 6,238,663,979.52
  5. Step 5: Solve for x
    x = 6,238,663,979.52/90,685.95
  6. Step 6: Final answer
    x = 68,794.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.